Sewing apparatus.



WITNESSES:

PATENTED FEB. 26, 1907.

P. JACOB & J. BOPPEL. SEWING APPARATUS.

APPLICATION FILED D30. 8. 1905.

2 8BHETS-SHBET 1.

|NVENTOR$ BY W JV. ad/r AITORNEY- .No. 845,092 PATENTED FEB. 26, 1907.

F. JACOB & J. BOPPEL.

SEWING APPARATUS.

APPLIGATION FILED DEU. B, 1905.

2 SHEETS-SHEET 2.

WITNESSES: INVENTORS Qaww ab 6 BY ATTORNEY.

UXIfllQl) S'VFATES lA'lENT OFFICE.

SEWING APPARATUS.

Specification of Letters Patent.

Patented Feb. 26, 1907.

. ipulitwitim'. lllr-il Deceiaht: 8, 1905i Serial N 290,920

art ties: ription oi the iniention \llt'll as will enalile thers skilledin [he art to whirh it apperttiinsv to tnalw and ll:\t' the same,retora-nre litillj had to the ueroinpan inti' drawings. and inlet tersot' rel'erenee nutrheit thereon, \\lil\'ll torni It part (it thisstir-Filtration 'llu ohj rts ol the titt'mlli iniplorelnents are toenahir the thriwul-raliwine' lifllllrill to he mor rmidiivand quit-lilyremoved from its holder or easing; to simplify and reduce the Ur-l ol'roIr-drnrtion: to prevent more etltrttlztll) the (logging ol' thet!t'\'ltt li at- ('llltllilttittl lint from the thread and goods sewedupon; to provide a more duiulhle and !i ?l\t'lt.\ tli\'lt't1 lo(llztlilt a higher speed to he ohtained, and to swore other advantagesand results, some ot' whirl: n|u he rel'erred to hereinat'te; inronne-etion with the desrriptiou ol the writing; parts.

The invention eons-hits in the improved sewing apparatus and in thearrangements and eoniliinations ol' partol' the saint, all suhsttintiailas will l lieiwinal'ter set forth and linally enihraeed in the rlausesoi the ('lainr litltt'lillti to the arroin u|n 'in t: drawings, in whichlike letters ol rel'erenre indirate (orresponding' parts in earrh ol'the several li -gun's, Figure l is a plan of a portion-oi the heth plateol' a sewinganaehiue and the liobl inholding ease and hookedlooping-ring and eonnet'tions. Fig. .3 is a. front elevation of thesame. Fig. 3 is a side elevation, and l ig. 4 is a front elevation, of ahohhin-ease holder ,lteeper in d tail. Fig 5 is a plan, and Fig. (3 is aside elevation, of a hohhinease; and Fig. 7 is a set-t ion of l hosatne,taken at line .r of hie .3. his: 8 is a detail side view of a hohhinused in ennnertion with our ilnptot'etnvuts. l lj fl is a plan of theloopinn-wine in detail; and Fig. is a sectional ion 01 the so me,ltllflll at line y 0f 1 ig. Q and show in; a hohhin-ejm-tor therein.,,

In said drawings 5 indieates part of the frame ol :1 tot'k-stitehsmring'niae title of any snituhle i-onstrut-tion. ti innit-ates a'hraehet attaehed to said lzed-plate and having horizontall\'projertingarnrs T S, whirh furnish hearings [or the oscillating, shaft5] of the guinea biaid shaft is arranged '\'QI tivall in said hearings,and lzetween said hearings said shalt .l is adapted to receive anysuitahle nieans h whieh it is turned and pret'erahtx' osr1llated. Abovethe up )er hearing 7 the said shaft is provided wit a horizontal radialarm 0'1, which is turned upward at its outer end to fornra verticalextension 9;, \\'ltit'l1 in turn carries the looping :rin it), the partsti and 10 being either integral or in pieces, as convenience may renderdesirahle. Said looping-ring 10 is horizontallr disposed and isconcentric with the shalt t), turning therewith under the power of theoperatinglneans. (Not shown.) in the upper edge of the ring 10 is aconcentrie groove l] for the hohlzin-casing, and through said ring areformed a series of perforations 12, opening into the bottom of thegroove H and permitting the out passage from said groove of any lint,grit, or thelike whieh it permitted to accumulate would clog themovements of the parts. The peri'olatious provide also air-passages bywhieh the air is caused to circulate at the contact surlaees to eoolsaid surfaces, and the aireurrents indueed by centrifugal force tends toblow out the lint to clear the hearings, as above indicated At one sideof the ring It) the same is reoessed, as at l3, and at said recess isformed a hook ut' pointed projection 14, adapted to enter hetween theneedlesthread and needle and l'orni a loop, as heroinafieil'idescribed.'lhe point ol said hook 14 lies within the peripheral line of the ringand below the plane of the rib 17 of the bobbin-easing and is timed torail-h tho needle-thread as the hitter is carried up by the needle. Theneedle traxeis parallel with the axis of the bobbin and reeiproeatesinside therine near the portion of the hohhin-eiising that divides theloop, as will he hereinafter described. Seated on top of said ring isarranged a bobbineasine- 15, which is held stationary, or substantiallyso, on said ring 10 as the latter oscillates by the bobbin-easing holder18. Said bobbin-casing is provided with a rib 17 on the under side, ator near its periphery, which fits loosely into the groove 11 to permit afree oscillation of the ring 10. Concentric with said rib and with thering is formed in said casing a bobbin chamber or receptacle 18, inwhich the. bobbin it) is 10 seated and freely works to pay out thebobbin-thread. Said bobbin 1.) is preferably a metallic spool, on whichthe thread may be Wound preliminary to the sewing operation; but it maybe a wooden spool, such as is com- 15 mon on the market, saidbobbin-casing and its receptacle 1% being then sized to suit. At oneside of the casing 15 the same is cut away to provide a bearing 20, saidbearing bein curved on a radius larger than that on whic i the normalperiphery of the casing is formed to permit an cas i slipping of thethread therefrom. The 8( go 201 of the ring 15 divides the loop on thehook 14 as the hook passes this point and conducts the thread sothot'one part of the loop passes between the bobbin-casing and the part26 and the other part under the bobbin. The loop then between the casing15 and part 27 and is ready to be drawn taut. o The. wall of thereceptacle 18 is slotted and provided with a tension-spring 22, Fig. 5,and through the slot 21 and between the body of the ring and the spring22 the thread asses out from the bobbin, as in other bobin holders orcasings now in common use.

To hold the bobbin-holder in place on the ring 10,. we have provided thekeeper 16. (Shown in Figs. 1 and 2 and in detail in Figs. 3 and 4.) Thiscoin rises a sheet-metal piece bent and shaped to e fastened. to thepart 5 or the bracket or plate 6, attached thereto and extended over thetop of the bobbinholder 15, the free end pressing gently down on the topof said bobbin-holder with a gen 5 tleresilient pressure, such as willnot interfere with the loop of the needle-thread passin hboth over andunder said bobbin-holder to lock with the bobbin-thread. To this endsaid keeper at one end is provided with a erforated seat or bearing 24,by which the eeper is screwed or otherwise fixed to the part 5, aforwardly and upwardly projecting arm 25, which is cnt so that its upperpart 26 lies in 0. horizontal plane to engage the top of thebobbin-holder. This horizontal part 26 is provided with a largerperforation or opening 27, which coincides with the chamber orreceptacle 18 in the bobbin-holder, as shown in Fig. 1, so that thebobbin can easily 5:: be removed from its chambcror receptacle throughsaid opening or perforation. The projecting extremity of the arm orhorizontel part 26 is bent or turned downward, as at 27, Figs. 2, 3, and4, to lie against the sur- (:5 face 20 of the bobbin-holder, thedepending part 27 conforming to .Hllb' t\l\!il i l l" eurvatu re of therut-away side of the bobbinholder, so that the latter will be preventedi from turning axiilly with the hooked ring To facilitate the removal ofthe bobbin from its receptacle. we have provided a lifting-rod38,h:..ving a head 28] adapted to underlie the spool or bobbin restingin its re.- cept'aele 18. The shaft U is hollo w axially to receive seidrod 28, and the bobbin-holder 15 is open or perforated at its bottom, asat 29, Fig. 7, to permit the head 28] to pass therethrongh and engagethe under side of the bobbin and raise said bobbin to a point at whichit can be conveniently grasped by the hand. To thus raise said head 25],we have employed a lifting-lever 3U, uh-ruined at 31 on a bracketii? midhaving a finger extension 33, which projects up through the ring andlies just outside of the depending part 27 of the keeper, where it canbe depressed by one finger of the hand about to grasp th bobbin as itrises, The rod 28 being at the center of the shaft 9 may turn therewithor not without interference with the movement o of said shaft or thehooked ring, and all danger of rattle or noise therefrom is avoided. Thebracket. 32 is also fastened against the part 5 or bracket 6 and doesnot interfere with the movements of the rin or the thread forced therebyover the bobbin holder. or

case.

In operating the device the needle-thread being caught by the hook orprojection 14 is drawn by said hook over the blade like end or terminal20] of the surface 20 at the periphcr of the bobbin-easing, where thethreat is caused to pass both over said casing between it and its keeperand under said bobbin-casing between it and the loopingring, and thusenter into locked relation to the bobbin-thread in a manner similar tothat common in the art.

Having thus described the invention, what we claim as new is 1. In asewing-machine the combination with the machine-frame having bearingsfor a vertical shaft, a hollow shaft arranged in said bearings, a ringcarried by said hollow shaft, a. groove being formed in the to of saidring concentric to the axis of said ho low shaft, a bobbin-casing havinga rib to enter said groove, means for holding said bobbincasing ontosaid rin said means comprising a shcctanetal piece as'tened tosaidlnt'tGlllllG- no frame and extending over the bobbin-casing and havingan opening through which the bobbin may ass, and an ejector-shaftarranged in said hollow shaft andada ted to engage the bobbin initscasing to ift the 12 5 same therefrom.

2. In a sewing-machine, the combination with a hooked ring for catchingthe needlethread, said ri having a roove therein concentric with t 6axis of sci ring and having side, openings communicating with the saidgroove, a'bobbin-casing having a rib to enter said groove and having areceptacle therein and means for holding said bobbineasing onto saidring.

3. In a setting-machine, the combination i With the ring having a grooveand h swing a recess at one side and a hook extending into said recessto catch the needle-thread and having; at the sides openings COIIHYIU-nioating with the groove in said ring, of a bobbin-casing adapted torest on said ring, the said casing being furnished with a rib adapted toenter said groove and a keeper comprising a piece bent and providinp aseat arranged to rest over the casing, the overlying part of. saidkeeper being open to nermit the insertion and withdrawal of the bobbin,substantially as set forth.

4. In a sewing apparatus, the combination with the machine-frame, of avertical shaft having at the top ahorizontal ring with openions at thesides and a groove at the top in open oonnnunication with said sideopenings,

:1 hoblnrcasing seated on said ring and having a rib iying in.said groomand a bobbin seated in said casin the said ring, lowing: a recess at oneside with a hook extending; from the hodyof said ring into said reeess,the point of the hook l ving below the plane of said rib to permit saidhook to pass underneath said easing 5. In a sewing: apparatus, thecombination with a inechine-franie, of a vertical hollow shaft having.1! the top a horizontal ring with a thread-hook, and having a groove inits upper face, a bobbin-casing having a rib to enter the groove in thering, the bobbin-casing being cut away on 0 -i side, a keeper secured tothe frame and bent 0 go over the bobbincasing,and having extensions toengage the out-awayportion of the bobbin-casing, the top portion of thekeeper having aperfioration, a receptacle v. it] v in the bobbin-casingfor reee1ving a bobbin and arranged to support the bobbin, a rodarranged in the shaft and having a head to engage the bobbin, a leverhaving an arm between the head of the rod and the end of the shaft, andthe finger-piece of tlie lever extending up between the ring and thebobbin-casing.

6. In a sewing apparatus, the combination with a machine-frame, of avertical l ollow shaft having at the top a horizontal ring having athreat l-hook, a bobbin-casing on the ring having one of its sides cutaway, a member bent to go over the bobbin-casin and maintain it in itsposition, a receptacle in the bobbin-easing to support a bobbin, a rodin the hollow shaft, a head on the rod, a lever on which tlte head ofthe rod rests, and a finger-piece on He lever proieeting up between tliering and the bobbin-casing.

in testimony that We elaiin tl eforegoing we have hereunto set our handsthis December, 1905.

FREDERICK JACOB. JACOB BOPPEL. YVitnosses Cnsnitns H. FELL, ETnEmvYNPELL.

1st day

